Dr. David Rafael Guillen specializes in pathology in Sacramento area. Dr. David Rafael Guillen, MD has a medical practice at 3301 C Street, Suite #200-e, Sacramento CA, and has over 25 years of experience in the field of medicine. He graduated from New York University School Of Medicine with his medical degree in 1992. Dr. Guillen is accepting new patients at his medical office and practice location in Sacramento, California. He is available for appointments, preventative care, medical care as well as ongoing patient care.